ASTM D6643-01(2016)

Standard Test Method for Testing Wood-Base Panel Corner Impact Resistance

SIGNIFICANCE AND USE
5.1 This test method determines the corner impact damage that could be used to measure the relative corner impact resistance.
SCOPE
1.1 This test method shall be used to measure the relative corner impact resistance and other damage that may occur during the rough handling of wood-base panels or composite materials. This test method is suitable for all wood-base panels such as plywood, oriented strand board, hardboard, particleboard and medium density fiberboard as well as other composite panel products.  
1.2 This test method covers determination and evaluation of the effects of panels being dropped from various heights with a predetermined amount of dead load and angle of impact to simulate an equivalent field application.  
1.3 The values of all information will be stated in English units and regarded as standard. The SI values are written in parentheses.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2016
• ICS: 19.060 - Mechanical testing
• ICS: 79.060.01 - Wood-based panels in general
• Technical Committee: D07 - Wood
• Drafting Committee: D07.03 - Panel Products

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6643 − 01 (Reapproved 2016)
Standard Test Method for
1
Testing Wood-Base Panel Corner Impact Resistance
This standard is issued under the fixed designation D6643; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Corner impact resistance may be an important property for wood-base panel applications such as
pallets, cargo crates, concrete form boards, fruit and vegetable boxes and furniture. There is a need to
have suitable corner impact resistance in such products to ensure satisfactory end–use performance.
This test method provides a technique to assess relative corner impact resistance of wood-base panels.
This test method uses a vertical test frame to create corner impact on a panel specimen. The test
specimen is held in a fixture that free-falls to the floor. The test specimen is examined for distance of
impact damage and for qualitative damage.
1. Scope tive Density) of Wood and Wood-Based Materials
D4442 Test Methods for Direct Moisture Content Measure-
1.1 This test method shall be used to measure the relative
ment of Wood and Wood-Based Materials
corner impact resistance and other damage that may occur
during the rough handling of wood-base panels or composite
3. Terminology
materials. This test method is suitable for all wood-base panels
3.1 Definitions:
such as plywood, oriented strand board, hardboard, particle-
board and medium density fiberboard as well as other compos- 3.1.1 actual damage, n—distance of damage counted from
tip to damage line after dropping.
ite panel products.
3.1.2 damage line, n—the innermost line where crushing
1.2 This test method covers determination and evaluation of
occurs.
the effects of panels being dropped from various heights with
a predetermined amount of dead load and angle of impact to
3.1.3 dropping head, n—the part of the machine connected
simulate an equivalent field application.
to the quick release mechanism that holds the test specimen
and added amount of dead load. The dropping head free-falls to
1.3 The values of all information will be stated in English
create the impact between the panel specimen and the floor.
units and regarded as standard. The SI values are written in
parentheses. 3.1.4 impact tip, n—the part of the specimen that will make
initial contact with the floor after dropping.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1.5 peeling, n—the furthermost splintering from the dam-
responsibility of the user of this standard to establish appro- age line. This provides additional understanding of damage
priate safety and health practices and determine the applica- characteristics.
bility of regulatory limitations prior to use.
3.1.6 pull cord, n—cord that is connected to the quick
release mechanism that allows a quick release of the dropping
2. Referenced Documents
head by pulling.
2
2.1 ASTM Standards:
3.1.7 quick release mechanism, n—the equipment that al-
D2395 Test Methods for Density and Specific Gravity (Rela-
lows for free release of the head when the pull cord is
activated.
1
This test method is under the jurisdiction of ASTM Committee D07 on Wood 3.1.8 reference line, n—line from which all measurements
and is the direct responsibility of Subcommittee D07.03 on Panel Products.
are taken. This allows samples to be cut to approximate size
Current edition approved May 1, 2016. Published June 2016. Originally
and still ensure accurate values.
approved in 2001. Last previous edition approved in 2011 as D6643 – 01 (2011).
DOI: 10.1520/D6643-01R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4. Summary of Test Method
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1 Specimens are cut from the corners of the sample panel.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. The specimens are fastened to the lower edge of a dropping
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6643 − 01 (2016)
head and clamped into position. The weight of the dropping
head is controlled to simulate the weight of the real application.
The dropping head is raised to specified heights and released to
fall to a rigid floor or other surface. The corner damage as well
as peeling is measured to indicate the corner impact resistance.
Peeling beyond the damage line may also be reported.
4.2 Optionally, sample can be subjected to wet-dry
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6643 − 01(Reapproved 2011) D6643 − 01 (Reapproved 2016)
Standard Test Method for
1
Testing Wood-Base Panel Corner Impact Resistance
This standard is issued under the fixed designation D6643; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Corner impact resistance may be an important property for wood-base panel applications such as
pallets, cargo crates, concrete form boards, fruit and vegetable boxes and furniture. There is a need to
have suitable corner impact resistance in such products to ensure satisfactory end–use performance.
This test method provides a technique to assess relative corner impact resistance of wood-base panels.
This test method uses a vertical test frame to create corner impact on a panel specimen. The test
specimen is held in a fixture that free-falls to the floor. The test specimen is examined for distance of
impact damage and for qualitative damage.
1. Scope
1.1 This test method shall be used to measure the relative corner impact resistance and other damage that may occur during the
rough handling of wood-base panels or composite materials. This test method is suitable for all wood-base panels such as plywood,
oriented strand board, hardboard, particleboard and medium density fiberboard as well as other composite panel products.
1.2 This test method covers determination and evaluation of the effects of panels being dropped from various heights with a
predetermined amount of dead load and angle of impact to simulate an equivalent field application.
1.3 The values of all information will be stated in English units and regarded as standard. The SI values are written in
parentheses.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D2395 Test Methods for Density and Specific Gravity (Relative Density) of Wood and Wood-Based Materials
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
3. Terminology
3.1 Definitions:
3.1.1 actual damage, n—distance of damage counted from tip to damage line after dropping.
3.1.2 damage line, n—the innermost line where crushing occurs.
3.1.3 dropping head, n—the part of the machine connected to the quick release mechanism that holds the test specimen and
added amount of dead load. The dropping head free-falls to create the impact between the panel specimen and the floor.
3.1.4 impact tip, n—the part of the specimen that will make initial contact with the floor after dropping.
3.1.5 peeling, n—the furthermost splintering from the damage line. This provides additional understanding of damage
characteristics.
1
This test method is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.03 on Panel Products.
Current edition approved Nov. 1, 2011May 1, 2016. Published November 2011June 2016. Originally approved in 2001. Last previous edition approved in 20012011 as
D6643 – 01 (2011). (2006). DOI: 10.1520/D6643-01R11.10.1520/D6643-01R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6643 − 01 (2016)
3.1.6 pull cord, n—cord that is connected to the quick release mechanism that allows a quick release of the dropping head by
pulling.
3.1.7 quick release mechanism, n—the equipment that allows for free release of the head when the pull cord is activated.
3.1.8 reference line, n—line from which all measurements are taken. This allows samples to be cut to approximate size and still
ensure accurate values.
4. Summary of Test Method
4.1 Specimens are cut from the corners of the sample panel. The specimens are fastened to the lower edge of a dropping head
and clamped into position. The weight of the dropping head is controlled to simul
...